"""
Case Type   : 多节点写入
Case Name   : 在事务中调用存储过程执行INSERT/DELETE/UPDATE语句及DDL语句
Create At   : 2023/1/6
Owner       : @li-xin12345
Description :
    1.修改enable_remote_execute参数值为on
    2.主机创建存储过程
    3.在事务中调用存储过程执行INSERT/DELETE/UPDATE语句及DDL语句
    4.备机查看日志打印
    5.环境清理，恢复参数
Expect      :
    1.修改成功
    2.创建成功
    3.执行失败
    4.日志记录建立连接、转发给主机、接受执行结果等libpqsw信息
    5.环境清理成功，恢复参数成功
History     :
    Modified by @li-xin12345 2023/3/15:研发代码变更，libpqsw日志打印增加线程号，优化断言以适配新代码
    Modified by @li-xin12345 2023/3/27:调用存储过程后延长等待时间，待主备通信完成后再查询数据
    Modified by @haomeng802 2023/6/29:研发代码变更，log信息发生变化，优化断言以适配新代码
    Modified by @haomeng802 2023/7/13:研发代码变更，事务内不支持DDL语句
"""
import os
import time
import unittest
from yat.test import Node
from yat.test import macro
from testcase.utils.Logger import Logger
from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant

PrimarySh = CommonSH('PrimaryDbUser')


@unittest.skipIf(1 == PrimarySh.get_node_num(),
                 'Single node, and subsequent codes are not executed.')
class MultiNodeWrite(unittest.TestCase):
    def setUp(self):
        self.logger = Logger()
        self.logger.info(f"-----{os.path.basename(__file__)} start-----")
        self.standby_node = Node('Standby1DbUser')
        self.standby_sh = CommonSH('Standby1DbUser')
        self.constant = Constant()
        self.common = Common('Standby1DbUser')
        self.table_name = 't_multi_node_write_0021'
        self.procedure_name = 'p_multi_node_write_0021'
        self.new_log_path = os.path.join(macro.PG_LOG_PATH,
                                         'pg_log_multi_node_write_case0021')
        self.enable_remote_execute = 'enable_remote_execute'
        self.log_statement = 'log_statement'
        self.log_directory = 'log_directory'
        self.remote_excute_default = self.common.show_param(
            self.enable_remote_execute)
        self.log_statement_default = self.common.show_param(self.log_statement)
        self.log_dir_default = self.common.show_param(self.log_directory)
        shell_cmd = f"rm -rf {self.new_log_path}"
        self.logger.info(shell_cmd)
        shell_msg = self.common.get_sh_result(self.standby_node, shell_cmd)
        self.assertEquals('', shell_msg, '删除目录失败')

    def test_multi_node_write(self):
        step1 = "-----step1:修改enable_remote_execute参数值为on;expect:修改成功-----"
        self.logger.info(step1)
        result = self.standby_sh.execute_gsguc(
            'set', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.enable_remote_execute}=on')
        self.assertTrue(result, '执行失败' + step1)
        restart_res = self.standby_sh.restart_db_cluster()
        self.assertTrue(restart_res, '执行失败' + step1)
        show_remote_excute = self.common.show_param(self.enable_remote_execute)
        self.assertEquals(show_remote_excute, 'on', '执行失败' + step1)
        result = self.standby_sh.execute_gsguc('reload',
                                               self.constant.GSGUC_SUCCESS_MSG,
                                               f'{self.log_statement}=all')
        self.assertTrue(result, '执行失败' + step1)
        result = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.log_directory}=\'{self.new_log_path}\'', single=True)
        self.assertTrue(result, '执行失败' + step1)
        show_log_statement = self.common.show_param(self.log_statement)
        self.assertEquals(show_log_statement, 'all', '执行失败' + step1)
        show_log_directory = self.common.show_param(self.log_directory)
        self.assertEquals(show_log_directory, self.new_log_path, '执行失败' + step1)

        step2 = "-----step2:主机创建存储过程;expect:创建成功-----"
        self.logger.info(step2)
        create_cmd = f'''create or replace procedure {self.procedure_name}
            (tb_name varchar) is 
            begin 
                execute immediate 'drop table if exists ' || tb_name || ';';
                execute immediate 'create table ' || tb_name || 
                '(id int, name varchar(20));';
                execute immediate 'insert into ' || tb_name || 
                ' values (generate_series(1,10), ''test'');';
                execute immediate 'update ' || tb_name || ' 
                set name=''software'' where id = 3;';
                execute immediate 'delete from ' || tb_name || ' where id=1;';
                return;
                end;'''
        create_msg = PrimarySh.execut_db_sql(create_cmd)
        self.logger.info(create_msg)
        self.assertIn(self.constant.CREATE_PROCEDURE_SUCCESS_MSG,
                      create_msg, '执行失败' + step2)
        time.sleep(10)

        step3 = "-----step3:在事务中调用存储过程执行INSERT/DELETE/UPDATE语句及DDL语句;" \
                "expect:执行失败-----"
        self.logger.info(step3)
        sql_cmd = f'''begin;
            call {self.procedure_name}('{self.table_name}');
            end;'''
        sql_msg = self.standby_sh.execut_db_sql(sql_cmd)
        self.logger.info(sql_msg)
        self.assertIn("BEGIN", sql_msg, '执行失败' + step3)
        self.assertIn(self.procedure_name, sql_msg, '执行失败' + step3)
        self.assertIn("ERROR:  The multi-write feature doesn\'t support "
                      "DDL within transaction or function!", sql_msg,
                      '执行失败' + step3)
        self.assertIn("ROLLBACK", sql_msg, '执行失败' + step3)
        time.sleep(2)

        step4 = "-----step4:备机查看日志打印;expect:日志记录建立连接、" \
                "转发给主机、接受执行结果等libpqsw信息-----"
        self.logger.info(step4)
        shell_cmd = f"ls -t {self.new_log_path}"
        self.logger.info(shell_cmd)
        shell_msg = self.common.get_sh_result(self.standby_node, shell_cmd)
        logfile = os.path.join(self.new_log_path, shell_msg.split()[-1])
        self.logger.info(logfile)
        shell_cmd = f"cat {logfile}"
        self.logger.info(shell_cmd)
        shell_msg = self.common.get_sh_result(self.standby_node, shell_cmd)
        self.logger.info(shell_msg)
        self.assertIn("we find new transfer request:[TRACE] Q: portal=BEGIN, "
                      "stmt=begin;", shell_msg,
                      '执行失败:' + step4)
        self.assertIn(f'LOG:  libpqsw', shell_msg, '执行失败:' + step4)

    def tearDown(self):
        step5 = "-----step5:环境清理，恢复参数;expect:环境清理成功，恢复参数成功-----"
        self.logger.info(step5)
        drop_cmd = f"drop procedure {self.procedure_name};"
        drop_msg = self.standby_sh.execut_db_sql(drop_cmd)
        self.logger.info(drop_msg)
        result1 = self.standby_sh.execute_gsguc(
            'set', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.enable_remote_execute}={self.remote_excute_default}')
        restart_res = self.standby_sh.restart_db_cluster()
        show_remote_excute = self.common.show_param(self.enable_remote_execute)
        result2 = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.log_statement}={self.log_statement_default}')
        result3 = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.log_directory}=\'{self.log_dir_default}\'', single=True)
        show_log_statement = self.common.show_param(self.log_statement)
        show_log_directory = self.common.show_param(self.log_directory)
        self.logger.info("-----断言teardown-----")
        self.assertIn(self.constant.DROP_PROCEDURE_SUCCESS_MSG,
                      drop_msg, '执行失败' + step5)
        self.assertTrue(result1, '执行失败' + step5)
        self.assertTrue(restart_res, '执行失败' + step5)
        self.assertEquals(show_remote_excute, self.remote_excute_default,
                          '执行失败' + step5)
        self.assertTrue(result2, '执行失败' + step5)
        self.assertTrue(result3, '执行失败' + step5)
        self.assertEquals(show_log_statement, self.log_statement_default,
                          '执行失败' + step5)
        self.assertEquals(show_log_directory, self.log_dir_default,
                          '执行失败' + step5)
        self.logger.info(f"-----{os.path.basename(__file__)} end-----")
